This standard has been revised by ISO 1017:2006
Abstract
A sample of toluene-soluble extract from brown coal or lignite obtained by the procedure describes in ISO 975 is extracted with acetone at a temperature of 18 to 22 °C. The soluble fraction is filtered or centrifuged off and after evaporation of the solvent dried to constant mass. The percentage of acetone-soluble material is calculated from the mass of reidue after drying.
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Status: WithdrawnPublication date: 1985-12
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Edition: 2Number of pages: 2
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- ICS :
- 73.040 Coals
Life cycle
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Previously
WithdrawnISO 1017:1975
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Now
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Revised by
PublishedISO 1017:2006
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